Attachment 140539 Details for Bug 187149 – file.diff

[patch] file.diff

file.diff (text/plain), 1.19 KB, created by olivier on 2014-02-28 21:10:00 UTC

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Creator: olivier

Created: 2014-02-28 21:10:00 UTC

Size: 1.19 KB

patch

obsolete

>Index: tools/tools/netmap/pkt-gen.c
>===================================================================
>--- tools/tools/netmap/pkt-gen.c	(revision 262618)
>+++ tools/tools/netmap/pkt-gen.c	(working copy)
>@@ -546,6 +546,7 @@
> {
> 	uint32_t a;
> 	uint16_t p;
>+	struct ether_header *eh = &pkt->eh;
> 	struct ip *ip = &pkt->ip;
> 	struct udphdr *udp = &pkt->udp;
> 
>@@ -580,6 +581,25 @@
> 	ip->ip_dst.s_addr = htonl(g->dst_ip.start);
>     } while (0);
>     // update checksum
>+	/* Missing code here ? the comment "update checksum" should be followed
>+	 * by updating IP & UDP checksum. I will try to fix by simply copy/past
>+	 * checksum code from initialize_packet function */
>+
>+	ip->ip_sum = 0;
>+	ip->ip_sum = wrapsum(checksum(ip, sizeof(*ip), 0));
>+
>+	/* UDP checksum */
>+	uint16_t paylen = g->pkt_size - sizeof(*eh) - sizeof(struct ip);
>+	udp->uh_sum = 0;
>+	udp->uh_sum = wrapsum(checksum(udp, sizeof(*udp),
>+                    checksum(pkt->body,
>+                        paylen - sizeof(*udp),
>+                        checksum(&ip->ip_src, 2 * sizeof(ip->ip_src),
>+                            IPPROTO_UDP + (u_int32_t)ntohs(udp->uh_ulen)
>+                        )
>+                    )
>+                ));
>+
> }
> 
> /*

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Attachments on bug 187149: 140539 | 157306 | 157307